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Materials
- Obsidian1,791 objects
- Chert32 objects
- Basalt (basic igneous rock)14 objects
- Bone (material)4 objects
- Agate (chalcedony)3 objects
- Flint (rock)3 objects
- Slate (rock)2 objects
- Asphalt (bituminous material)1 objects
- Metal1 objects
- Petrified wood1 objects
- Quartzite1 objects